Product: Thin Layer Chromatography Silica Gel
CAS NO: 112926-00-8
Molecular formula: SiO2
Properties:
White powder particle, the main ingredient is SiO2. Non-toxic, colorless, tasteless, insoluble in water and organic solvents, with a high specific surface and a certain pore structure, a strong adsorption properties, easy to absorb moisture.
Application:
Mainly used for pharmaceuticals, pesticides, Chinese herbal medicine, organic chemical products, oil chemical products, food, food ingredients and trace of impurities of qualitative and quantitative analysis and some material purifying and preparing. Thin layer H can also be used as a carrier for dry cleaning agent.
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Product name
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Thin Layer Chromatography Silica Gel and High efficient Thin Layer Chromatography Silica Gel
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Type
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H
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HF254
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G
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GF254
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Instruction
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High purity silica gel powder
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High purity silica gel powder of contain Fluorescent powder
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High purity silica gel powder of Contain Calcined gypsum
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High purity silica gel powder of contain Fluorescent powder and Calcined gypsum
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Specification:
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Items
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Quality
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H
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HF254
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G
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GF254
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Superior grade
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First grade
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Superior grade
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First grade
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Superior grade
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First grade
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Superior grade
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First grade
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Calcined gypsum
(CaSO4. 1/2H2O) (%)
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-
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12.0-14.0
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Chlorides(Cl) (%)
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≤0.02
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≤0.02
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Iron(Fe) (%)
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≤0.015
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≤0.020
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≤0.015
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≤0.020
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≤0.015
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≤0.020
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≤0.015
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≤0.020
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PH(100g/L water suspension)
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6.5-7.0
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6.0-7.0
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6.5-7.0
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6.0-7.0
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6.5-7.0
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6.0-7.0
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6.5-7.0
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6.0-7.0
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Sift remainder (w=38um)
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≤4.0
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≤8.0
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≤4.0
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≤8.0
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≤4.0
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≤8.0
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≤4.0
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≤8.0
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Activity
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Three colors separated
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Loss on Heating (%)
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≤ 5
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≤ 5
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Note: The “three colors” shown in the table refer to BI-methyl 1 yellow, sultan red and indigo.
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